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Finding the Third Proportional to 660,258 and 989,982

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Solution

The third proportional to 660,258 and 989,982 is: 1,484,365.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,258 : 989,982 = 989,982 : x
  2. Step 2: Convert to fraction form
    660,258/989,982 = 989,982/x
  3. Step 3: Cross multiply
    660,258x = 989,982 × 989,982
  4. Step 4: Simplify right side
    660,258x = 980,064,360,324
  5. Step 5: Solve for x
    x = 980,064,360,324/660,258
  6. Step 6: Final answer
    x = 1,484,365.75

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.